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Cornerstone · Grades 3–5 Keystones #1 20 July 2022 Skills week 1 of 7
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Five GCSE retrieval questions · 20 July 2022 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 5⁄10 + 3⁄10

    Answer: 4⁄5
  2. 2. Algebra Two-step equations

    Solve: 8x - 16 = 64

    Answer: x = 10
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 11cm and b = 9cm

    Answer: 14.21cm
  4. 4. Ratio Sharing in a ratio

    Divide 65 in the ratio 1:2:2

    Answer: 13, 26 and 26
  5. 5. Statistics Mean

    Find the mean of: 2, 9, 3

    Answer: 4.6666666666667

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